San Juan (SJU) to Jacksonville (JAX), Dec 18–19, 2026: from $319 round trip

San Juan (SJU) to Jacksonville (JAX), Dec 18–19, 2026: from $319 round trip on Axel, checked Nov 14, 2026. Lowest published fare: $319 round trip, Axel-exclusive, Frontier Airlines, nonstop, Dec 18–19, 2026, 1 adult, economy, checked Nov 14, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: San Juan to Jacksonville (JAX) flight deals

2026-12-18 → 2026-12-19 · Axel-exclusive $319

• Frontier Airlines F93305: SJU 2026-12-18 13:05:00 → JAX 2026-12-18 15:39:00; nonstop; 214 minutes. Local airport times.
• Frontier Airlines F92414: JAX 2026-12-19 09:26:00 → SJU 2026-12-19 13:32:00; nonstop; 186 minutes. Local airport times.

2026-12-18 → 2026-12-19 · Axel-exclusive $464

• Delta Air Lines DL1774 / DL2265: SJU 2026-12-18 13:09:00 → JAX 2026-12-18 20:43:00; 1 stop(s) via ATL; 514 minutes. Local airport times.
  • DL1774: SJU 2026-12-18 13:09:00 → ATL 2026-12-18 16:15:00; layover at ATL: 198 minutes.
  • DL2265: ATL 2026-12-18 19:33:00 → JAX 2026-12-18 20:43:00.
• Frontier Airlines F92414: JAX 2026-12-19 09:26:00 → SJU 2026-12-19 13:32:00; nonstop; 186 minutes. Local airport times.

2026-12-18 → 2026-12-19 · Axel-exclusive $500

• JetBlue Airways B61742: SJU 2026-12-18 12:45:00 → JAX 2026-12-18 15:00:00; nonstop; 195 minutes. Local airport times.
• JetBlue Airways B62117 / B6253: JAX 2026-12-19 07:35:00 → SJU 2026-12-19 15:58:00; 1 stop(s) via FLL; 443 minutes. Local airport times.
  • B62117: JAX 2026-12-19 07:35:00 → FLL 2026-12-19 08:51:00; layover at FLL: 209 minutes.
  • B6253: FLL 2026-12-19 12:20:00 → SJU 2026-12-19 15:58:00.

2026-12-18 → 2026-12-19 · Axel-exclusive $566

• American Airlines AA3324 / AA2945: SJU 2026-12-18 07:05:00 → JAX 2026-12-18 14:03:00; 1 stop(s) via CLT; 478 minutes. Local airport times.
  • AA3324: SJU 2026-12-18 07:05:00 → CLT 2026-12-18 10:05:00; layover at CLT: 157 minutes.
  • AA2945: CLT 2026-12-18 12:42:00 → JAX 2026-12-18 14:03:00.
• American Airlines AA2318 / AA2141: JAX 2026-12-19 06:00:00 → SJU 2026-12-19 12:25:00; 1 stop(s) via MIA; 325 minutes. Local airport times.
  • AA2318: JAX 2026-12-19 06:00:00 → MIA 2026-12-19 07:24:00; layover at MIA: 80 minutes.
  • AA2141: MIA 2026-12-19 08:44:00 → SJU 2026-12-19 12:25:00.

2026-12-18 → 2026-12-19 · Axel-exclusive $319

• Frontier Airlines F93305: SJU 2026-12-18 07:17:00 → JAX 2026-12-18 09:46:00; nonstop; 209 minutes. Local airport times.
• Frontier Airlines F93306: JAX 2026-12-19 19:14:00 → SJU 2026-12-19 23:14:00; nonstop; 180 minutes. Local airport times.

2026-12-18 → 2026-12-19 · Axel-exclusive $355

• Frontier Airlines F92871 / F91550: SJU 2026-12-18 11:56:00 → JAX 2026-12-18 19:25:00; 1 stop(s) via ATL; 509 minutes. Local airport times.
  • F92871: SJU 2026-12-18 11:56:00 → ATL 2026-12-18 15:08:00; layover at ATL: 181 minutes.
  • F91550: ATL 2026-12-18 18:09:00 → JAX 2026-12-18 19:25:00.
• Frontier Airlines F92414: JAX 2026-12-19 09:26:00 → SJU 2026-12-19 13:32:00; nonstop; 186 minutes. Local airport times.

2026-12-18 → 2026-12-19 · Axel-exclusive $355

• Frontier Airlines F93305: SJU 2026-12-18 06:00:00 → JAX 2026-12-18 08:31:00; nonstop; 211 minutes. Local airport times.
• Frontier Airlines F91549 / F92300: JAX 2026-12-19 15:39:00 → SJU 2026-12-19 23:44:00; 1 stop(s) via ATL; 425 minutes. Local airport times.
  • F91549: JAX 2026-12-19 15:39:00 → ATL 2026-12-19 17:07:00; layover at ATL: 119 minutes.
  • F92300: ATL 2026-12-19 19:06:00 → SJU 2026-12-19 23:44:00.

2026-12-18 → 2026-12-19 · Axel-exclusive $522

• JetBlue Airways B6954 / B62218: SJU 2026-12-18 06:45:00 → JAX 2026-12-18 13:44:00; 1 stop(s) via FLL; 479 minutes. Local airport times.
  • B6954: SJU 2026-12-18 06:45:00 → FLL 2026-12-18 08:32:00; layover at FLL: 228 minutes.
  • B62218: FLL 2026-12-18 12:20:00 → JAX 2026-12-18 13:44:00.
• JetBlue Airways B62117 / B6253: JAX 2026-12-19 07:35:00 → SJU 2026-12-19 15:58:00; 1 stop(s) via FLL; 443 minutes. Local airport times.
  • B62117: JAX 2026-12-19 07:35:00 → FLL 2026-12-19 08:51:00; layover at FLL: 209 minutes.
  • B6253: FLL 2026-12-19 12:20:00 → SJU 2026-12-19 15:58:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
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